B1255 Code - Left Rear Tire Pressure Sensor and Transmitter Assembly Not Programmed
Quick Answer
The Body Control Module (BCM) monitors the Left Rear Tire Pressure Sensor and Transmitter Assembly. Common causes include Reprogram Left Rear Tire Pressure Sensor and Transmitter Assembly, Faulty Left Rear Tire Pressure Sensor, Faulty Left Rear Tire Transmitter Assembly. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- B1255 indicates Left Rear Tire Pressure Sensor and Transmitter Assembly Not Programmed.
- Common causes
- Common causes include Reprogram Left Rear Tire Pressure Sensor and Transmitter Assembly, Faulty Left Rear Tire Pressure Sensor, Faulty Left Rear Tire Transmitter Assembly.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code B1255 Description
What are the Possible Causes of the DTC B1255?
- Reprogram Left Rear Tire Pressure Sensor and Transmitter Assembly
- Faulty Left Rear Tire Pressure Sensor
- Faulty Left Rear Tire Transmitter Assembly
- Faulty Body Control Module (BCM)
How to Fix the DTC B1255?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1255 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- B1255 Acura — Combination Switch Control Unit Lost Communication With MICU
- B1255 Ford — Left Rear Tire Pressure Sensor and Transmitter Assembly Not Programmed
- B1255 Honda — Combination Switch Control Unit Lost Communication With MICU
- B1255 Lincoln — Left Rear Tire Pressure Sensor and Transmitter Assembly Not Programmed
- B1255 Mercury — Left Rear Tire Pressure Sensor and Transmitter Assembly Not Programmed
Frequently Asked Questions about B1255 Code
1. What does the OBDII code B1255 mean?
The B1255 code indicates that the left rear tire pressure sensor and transmitter assembly is not programmed or not recognized by the vehicle's tire pressure monitoring system (TPMS).
2. What are the common symptoms of code B1255?
Common symptoms include a TPMS warning light on the dashboard, inaccurate tire pressure readings, or no readings for the left rear tire.
3. What causes the B1255 code to appear?
This code is typically caused by an unprogrammed or faulty left rear tire pressure sensor, incorrect sensor installation, or software issues in the TPMS.
4. Can I drive my vehicle with the B1255 code active?
Yes, but it's not recommended for long-term use since you won't receive accurate tire pressure monitoring for the left rear tire, which could compromise safety.
5. How do I fix the B1255 code?
Reprogram the left rear tire pressure sensor using a TPMS tool or scan tool, or replace the sensor if it’s damaged or non-functional.
6. Do I need to replace the left rear tire pressure sensor to clear the B1255 code?
Not always. The sensor may only need to be reprogrammed or re-synced with the vehicle's TPMS.
7. Can a dead sensor battery cause the B1255 code?
Yes, a dead or low battery in the tire pressure sensor can prevent it from transmitting data, triggering the code.
8. What tools are needed to diagnose and repair the B1255 code?
You’ll need a TPMS scan tool, a tire pressure gauge, and potentially a tire removal tool if sensor replacement is required.
9. Does replacing the tire affect the B1255 code?
It can if the tire replacement process damages the sensor or if the sensor was not reprogrammed after installation.
10. How much does it cost to fix the B1255 code?
Costs vary depending on whether reprogramming or sensor replacement is needed. Reprogramming typically costs $50–$100, while a new sensor can cost $50–$250, plus labor.
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